JP6046337B2 - Lifting method of outer wall panel - Google Patents

Description

  The present invention relates to an outer wall panel lifting tool and an outer wall panel for lifting an outer wall panel by a lifting machine.

  For example, in a building such as a steel structure, it is generally performed to configure an outer wall with a number of outer wall panels made of lightweight cellular concrete (ALC) or the like. When constructing such a building, the outer wall panel is lifted and transported to a position higher than the building by a lifting machine, and the outer wall panel is lowered at a predetermined position and attached to the frame.

  For example, as shown in FIG. 10, the outer wall panel is lifted by winding a sling belt 101 around the outer wall panel 100 in the vicinity of the upper end of the outer wall panel and hooking the sling belt 101 on a hook of a hoist.

  In the above-described method using the sling belt, the outer wall panel 100 is inclined in the thickness direction of the panel when it is lifted (the upper end falls to the outside of the building due to the deviation between the center of gravity of the outer wall panel 100 in the thickness direction and the suspension position). ). For this reason, for example, when a building is built in a commercial area, when a sufficient space is not secured between adjacent buildings, it is difficult to attach the outer wall panel.

  Further, when a sling belt is used, the surface of the outer wall panel may be damaged by the sling belt. Especially when adjacent buildings are close to each other and it is difficult to fill the sealing material of the joint after installing the outer wall panel or to paint the outer wall, the outer wall panel may be pre-painted or sealed. In this case, when the outer wall panel is lifted by the sling belt, the coating film or the sealing material may be peeled off.

  By the way, Patent Document 1 describes a concrete panel lifting / attaching anchor device that does not use the above-described sling belt. This lifting / attaching anchor device includes a rod-shaped member inserted into a vertical hole formed in the upper and lower end surfaces of a concrete panel, a cylindrical member inserted into a horizontal hole formed so as to communicate with the vertical hole, and an upper end screw of the rod-shaped member It is comprised by the lifting member etc. which are screwed together by the part (refer FIG. 4 of patent document 1).

Japanese Patent Laid-Open No. 05-051996

  However, in the case of the above-mentioned lifting / attaching anchor device, there are many parts of the device and the structure is complicated. For this reason, the attaching / detaching operation of the apparatus to / from the concrete panel becomes complicated and takes time and effort. In addition, the device cost increases. Furthermore, since the concrete panel is supported by a point, the load is concentrated near the fulcrum, and the panel may be damaged in the case of a panel having a relatively low strength.

The present invention has been made in view of the above points, and in the operation of attaching the outer wall panel in a narrow space, it can be easily attached to and detached from the outer wall panel, does not take time and effort, and can be applied to an outer wall panel having low strength. An object of the present invention is to provide a method for lifting an outer wall panel that is simple in structure and advantageous in cost.

To achieve the above object, the present invention provides a support piece for supporting the outer wall panel by being inserted into an insertion hole formed in the width direction from one side surface of the outer wall panel in the width direction. provided substantially in parallel, the hook piece having a hook portion crane hook is hooked, a connecting piece for connecting the hook piece and the support piece, the support piece in the outer wall panel lifting tool having a The method for lifting the outer wall panel, wherein the outer wall panel is lifted by being inserted through the insertion hole .

  According to the present invention, the outer wall panel can be lifted in a state where the outer wall panel is kept in a vertical posture, and therefore the lifting operation of the outer wall panel in a narrow space can be appropriately performed. In addition, since the support piece can be attached to and detached from the outer wall panel by putting it in and out of the insertion hole of the outer wall panel, it is easy to attach and detach, and it does not take time and effort. In addition, the apparatus configuration is simple and inexpensive. Furthermore, since the outer wall panel can be supported by the entire support piece, the load can be dispersed and the outer wall panel having low strength can be appropriately lifted without fear of damage.

  In the outer wall panel lifting tool, the position of the hooking portion of the hooking piece when the tip of the support piece comes into contact with the end of the insertion hole of the outer wall panel matches the position of the center of gravity in the width direction of the outer wall panel It may be configured to. In such a case, by inserting the support piece up to the end of the insertion hole of the outer wall panel, the support piece can be easily attached to an appropriate position balanced in the width direction of the outer wall panel. Time and effort can be further reduced.

  A plurality of the hooks may be provided according to variations in the width of the outer wall panel to be lifted. In such a case, even if a plurality of types of outer wall panels having different width dimensions are used at the construction site, the construction can be performed using the same outer wall panel lifting tool, so that work efficiency can be improved.

  The outer wall panel lifting tool described above may further include a stopper piece that prevents the lifted outer wall panel from falling off the support piece. In such a case, the outer wall panel can be prevented from dropping.

  The support piece may be formed in a columnar shape, and may be rotatable with respect to the outer wall panel within an insertion hole of the outer wall panel. In such a case, when the outer wall panel is lifted, the posture is corrected in the vertical direction by the weight of the outer wall panel, so that it is possible to lift the outer wall panel in a narrower space. Moreover, since the whole outer wall panel lifting tool can be rotated with respect to the outer wall panel around the support piece, the outer wall panel lifting tool can be moved to an easy-to-handle angle, and can be easily attached to and detached from the outer wall panel.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment operation | work of the outer wall panel performed by lifting an outer wall panel with a lifting machine etc. can be performed simply and appropriately using the outer wall panel lifting tool with a simple structure and advantageous in cost.

It is explanatory drawing which shows the structure of an outer wall panel lifting tool. (A) is a side view of an outer wall panel, (b) is a front view of an outer wall panel. It is explanatory drawing which shows the outer wall panel lifting tool of the state which lifted the outer wall panel. It is a side view of the outer wall panel lifting tool of the state which lifted the outer wall panel. It is explanatory drawing which shows the structure of the outer wall panel lifting tool which has a stopper piece. It is explanatory drawing which shows an example of the advancing / retreating mechanism of a stopper part. It is explanatory drawing which shows an example of the advancing / retreating mechanism of a stopper part. It is explanatory drawing which shows the state which the outer wall panel lifting tool with two hook parts supported the wide outer wall panel. It is explanatory drawing which shows the state which the outer wall panel lifting tool with two hook parts supported the narrow outer wall panel. It is explanatory drawing which shows the state which has lifted the outer wall panel with the sling belt.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an outline of the configuration of an outer wall panel lifting tool 1 according to the present embodiment.

  The outer wall panel lifting tool 1 is formed, for example, by bending one long round steel bar, a supporting piece 10 that supports the outer wall panel 20, a hooking piece 11 on which a hook of a lifting machine is hooked, It has the connection piece 12 which connects the edge part of the support piece 10 and the hooking piece 11, and the whole becomes a substantially U shape.

  As shown in FIG. 2, for example, the outer wall panel 20 is formed with an insertion hole 21 extending along the width direction A from one side surface 20 a in the width direction A of the outer wall panel 20. The insertion hole 21 is formed at a position close to one end face in the longitudinal (height) direction B of the outer wall panel 20 and in the center in the thickness direction C of the outer wall panel 20. The insertion hole 21 does not penetrate and is formed to a position closer to the other side surface 20b than at least the center of the outer wall panel 20 in the width direction A.

  As shown in FIG. 1, the support piece 10 is formed to be insertable into the insertion hole 21 of the outer wall panel 20. For example, the support piece 10 has a diameter that can rotate within the insertion hole 21. The support piece 10 has a longer dimension than the insertion hole 21.

  The hooking piece 11 is parallel to the support piece 10 and has a hooking portion 30 around which the hook of the lifting machine is hooked. The hook portion 30 is formed, for example, by curving a part of the hook piece 11 so as to protrude upward. The hook 30 is formed at a position that coincides with the gravity center position G in the width direction A of the outer wall panel 20 when the tip of the support piece 10 contacts the terminal end 21a of the insertion hole 21 of the outer wall panel 20. Yes.

  The connection piece 12 extends in a direction perpendicular to the support piece 10 and the hook piece 11, and connects the end portions on the same side of the support piece 10 and the hook piece 11.

  Next, the attachment method of the outer wall panel 20 using the outer wall panel lifting tool 1 comprised as mentioned above is demonstrated.

  The outer wall panel 20 to be lifted is an outer wall panel made of lightweight cellular concrete (ALC) that constitutes the outer wall of a steel-frame industrial house having a predetermined planar module, for example. Further, the outer wall panel 20 is constructed in a narrow site so that it is difficult to tentatively install a scaffold in the vicinity of a neighboring building, for example, and it is difficult to perform sealing driving work or spray painting work from the outside of the building after the outer wall panel is attached. Applies to buildings. For this reason, a coating is formed in advance on the surface, side surface, and upper and lower end surfaces of the outer wall panel 20 to form a coating film, and a dry joint material for waterproofing the joint portion is mounted on the side surface.

  First, as shown in FIGS. 3 and 4, the support piece 10 of the outer wall panel lifting tool 1 is inserted into the insertion hole 21 of the outer wall panel 20. The support piece 10 is inserted until the tip comes into contact with the terminal end 21 a of the insertion hole 21. Thereby, the center-of-gravity position G in the width direction A of the outer wall panel 20 and the position of the hook portion 30 coincide. Since the insertion hole 21 is formed at the center of the outer wall panel 20 in the thickness direction C, the position of the center of gravity of the outer wall panel 20 in the thickness direction C and the position of the hook portion 30 also coincide. In the figure, the outer wall panel 20 is drawn upright, but in reality, the support piece 10 is stacked (horizontally stacked) on the building site or on the loading platform of a transport truck and laid down horizontally. It is common to perform the insertion work.

  Next, the hook F of the lifting machine is hooked on the hook 30. Thereafter, the hook F is pulled up by the lifting machine, and the outer wall panel 20 is lifted up via the outer wall panel lifting tool 1. At this time, for example, the support piece 10 rotates around the axis in the insertion hole 21 and the vertical posture of the outer wall panel 20 is maintained. Thereafter, the outer wall panel 20 is transported to a predetermined position on the outer periphery of the building by the lifting machine and lowered. The lower end of the outer wall panel 20 lowered to a predetermined height is drawn to the inside of the building by an operator waiting inside the building and placed on the outer wall panel bracket attached to the outer side of the upper flange of the beam to be temporarily fixed. Is done. Thereafter, the support piece 10 is pulled out from the insertion hole 21 of the outer wall panel 20 in a state where the upper end of the outer wall panel 20 is temporarily held by other means so as not to fall to the outside of the building. And the outer wall panel 20 is attached to the housing of a building using a predetermined metal fitting and bolt.

  According to the present embodiment, since the outer wall panel 20 can be lifted while maintaining a vertical posture, the outer wall panel 20 is properly attached even when there is little space between the adjacent buildings. be able to. Moreover, since the support piece 10 can be inserted into and removed from the outer wall panel 20 by inserting and removing the support piece 10 into and from the insertion hole 21 of the outer wall panel 20, it is easy to attach and detach and does not require time and effort. Moreover, the apparatus structure of the outer wall panel hanging tool 1 is simple and inexpensive. Further, since the outer wall panel 20 can be supported by the entire support piece 10, the load is dispersed and even the outer wall panel having low strength can be appropriately lifted without fear of breakage.

  Further, in the outer wall panel lifting tool 1, the position of the hook portion 30 when the tip of the support piece 10 comes into contact with the terminal end 21 a of the insertion hole 21 matches the gravity center position G in the width direction A of the outer wall panel 20. It is configured. For this reason, if the support piece 10 is inserted up to the terminal end 21a of the insertion hole 21, the outer wall panel 20 can be balanced at the time of lifting, so the support piece 10 can be easily mounted at an optimal balanced position, The labor and time for mounting the outer wall panel lifting tool 1 can be further reduced.

  Further, since the support piece 10 is formed in a round bar shape and is rotatable with respect to the outer wall panel 20 in the insertion hole 21 of the outer wall panel 20, when the outer wall panel 20 is lifted, it is automatically caused by its own weight. Since the posture is corrected in the vertical direction, the outer wall panel 20 can be lifted in a narrower space. Further, since the entire outer wall panel lifting tool 1 can be rotated with respect to the outer wall panel 20 around the support piece 10, the outer wall panel lifting tool 1 can be moved to an easy-to-handle angle, and can be easily attached to and detached from the outer wall panel 20. It can be carried out.

  The outer wall panel lifting tool 1 in the above embodiment may have a stopper piece 50 that prevents the outer wall panel 20 lifted from falling off the support piece 10 as shown in FIG. In this case, for example, the hook piece 11 is connected to a bar-like stopper piece 50 extending downward from an end portion on the side where the connecting piece 12 is not connected. The stopper piece 50 is on the same plane as the support piece 10, the hook piece 11, and the connecting piece 12, faces and is parallel to the connecting piece 12, and is directed perpendicular to the support piece 10 and the hook piece 11. In this case, for example, a reinforcing piece 51 for connecting the stopper piece 50 and the connecting piece 12 is provided.

  The stopper piece 50 has, for example, a stopper portion 50a facing the other side surface 20b of the suspended outer wall panel 20, and the outer wall panel 20 shifted in the width direction A with respect to the support piece 10 is stopped at the stopper portion 50a. Can do.

  The stopper portion 50a may be configured to be retractable from a position facing the other side surface 20b of the outer wall panel 20, for example. For example, the stopper piece 50 is provided with an advancing / retreating mechanism for advancing and retracting the stopper portion 50a with respect to the main body of the stopper piece 50. The advance / retreat mechanism may be a slide mechanism that moves the stopper portion 50a along the stopper piece 50 main body as shown in FIG. In such a case, for example, a slit D is formed in the stopper portion 50a, two screws 60 fixed to the stopper piece 50 main body are provided in the slit D, the stopper portion 50a is slid in the slit D direction, and the screw is screwed at a desired position. 60 may be fastened and fixed. At this time, the screw 60 also functions as a stopper that limits the sliding range of the stopper portion 50a.

  Further, the advancing / retreating mechanism of the stopper portion 50a may be a rotation mechanism that rotates the stopper portion 50a with respect to the main body of the stopper piece 50 as shown in FIG. In such a case, for example, a screw 70 for stopping the stopper portion 50a is provided on the main body of the stopper piece 50, the stopper portion 50a is rotated around the screw 70, and the screw 70 is tightened and fixed at a desired position. Good. At this time, the stopper portion 50a may be provided with a stopper plate 71 that limits the range of rotation. The advance / retreat mechanism of the stopper portion 50a is not limited to these configurations, and may have other configurations.

  When the stopper piece 50 is provided in the outer wall panel hanging tool 1 as described above, the outer wall panel 20 can be prevented from dropping. Further, by providing the stopper piece 50 with a mechanism for advancing and retracting the stopper portion 50a, the support piece 10 can be smoothly inserted into the insertion hole 21 without the stopper portion 50a getting in the way.

  In the above embodiment, one hooking portion 30 of the outer wall panel lifting tool 1 is provided on the hooking piece 11, but a plurality of hooking portions 30 are provided according to variations in the width dimension of the outer wall panel 20 to be lifted. Also good. For example, when there are two types of width dimensions of the outer wall panel 20, two hook portions 30a and 30b are provided on the hook piece 11 as shown in FIGS. For example, the hook 30a is for the wide outer wall panel 20, and the hook 30b is for the narrow outer wall panel 20. Further, as shown in FIG. 8, the hooking portion 30 a matches the gravity center position G in the width direction A of the wide outer wall panel 20 when the tip of the support piece 10 comes into contact with the terminal end 21 a of the insertion hole 21. As shown in FIG. 9, the hook portion 30 b is located at the center of gravity in the width direction A of the narrow outer wall panel 20 when the tip of the support piece 10 comes into contact with the terminal end 21 a of the insertion hole 21. It is formed at a position that matches G. In such a case, when it is necessary to lift a plurality of types of outer wall panels 20 having different width dimensions at the construction site, the construction can be performed using the same outer wall panel lifting tool 1, so that work efficiency can be improved. The number of hooks 30 is not limited to two, and can be arbitrarily selected according to the number of types of outer wall panels 20 to be lifted.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, in the above embodiment, the insertion hole 21 of the outer wall panel 20 may penetrate, and the support piece 10 of the outer wall panel lifting tool 1 may penetrate the insertion hole 21. In this case, in order to make the positional relationship between the mounted outer wall panel lifting tool 1 and the outer wall panel 20 appropriate, for example, pulling is performed so that a balance can be achieved with one side surface 20a of the outer wall panel 20 in contact with the connecting piece 12. The position of the hanging portion 30 may be determined. Further, the support piece 10 may be provided with a protrusion or the like that contacts one side surface 20a of the outer wall panel 20. The shape of the hook portion 30 of the hook piece 11 may be another shape such as a ring shape, for example. Further, the shape of the support piece 10 is not limited to a cylindrical shape, and may be another shape.

  The present invention is useful when the outer wall panel is easily attached in a small space.

DESCRIPTION OF SYMBOLS 1 Outer wall panel lifting tool 10 Supporting piece 11 Hooking piece 12 Connection piece 20 Outer wall panel 20a One side surface 20b Other side surface 21 Insertion hole 30 Hooking part 50 Stopper piece A Width direction of outer wall panel B Longitudinal direction of outer wall panel C Outer wall Panel thickness direction

Claims (5)

A support piece that is inserted into an insertion hole formed in the width direction from one side surface in the width direction of the outer wall panel and supports the outer wall panel;
A hook piece provided substantially parallel to the support piece and having a hook portion on which a hook of a lifting machine is hooked;
A method for lifting an outer wall panel, wherein the support piece in an outer wall panel lifting tool having the support piece and a connecting piece for connecting the hooking piece is inserted through the insertion hole to lift the outer wall panel.   The position of the hooking portion of the hooking piece when the tip of the support piece comes into contact with the end of the insertion hole of the outer wall panel is configured to coincide with the position of the center of gravity of the outer wall panel in the width direction. The method for lifting the outer wall panel according to claim 1.   The method for lifting the outer wall panel according to claim 1 or 2, wherein a plurality of the hooks are provided according to variations in the width of the outer wall panel to be lifted.   The method for lifting the outer wall panel according to any one of claims 1 to 3, further comprising a stopper piece for preventing the suspended outer wall panel from falling off the support piece.   The method of lifting an outer wall panel according to claim 1, wherein the support piece is formed in a columnar shape and is rotatable with respect to the outer wall panel within an insertion hole of the outer wall panel.

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